Skip to content

Instantly share code, notes, and snippets.

@timrwood
Created November 9, 2014 00:13
Show Gist options
  • Save timrwood/c58b667650bee749d5af to your computer and use it in GitHub Desktop.
Save timrwood/c58b667650bee749d5af to your computer and use it in GitHub Desktop.
Ember Data Dirty Relationships Mixins
import Ember from 'ember';
export { dirtyHasMany, dirtyBelongsTo, dirtyMixin };
var dirty = 'relationshipIsDirty';
function dirtyMixin (obj) {
var args = Object.keys(obj);
var comp = Ember.computed;
args.push('isDirty');
obj[dirty] = comp.any.apply(comp, args);
return Ember.Mixin.create(obj);
}
function dirtyHasMany (name) {
return function () {
if (this.get('_data.' + name + '.length') !== this.get(name + '.length')) {
return true;
}
return this.get(name).any(function (item) {
return item.get(dirty);
});
}.property(name + '.@each.' + dirty, name + '.length');
}
function dirtyBelongsTo (name) {
return function () {
return this.get('_data.' + name + '.id') !== this.get(name + '.id');
}.property(name);
}
import DS from 'ember-data';
import { dirtyBelongsTo, dirtyMixin } from './dirty-helpers';
var attr = DS.attr, belongsTo = DS.belongsTo;
var mixin = dirtyMixin({
_isIngredientDirty: dirtyBelongsTo('ingredient')
});
export default DS.Model.extend(mixin, {
amount: attr('number'),
ingredient: belongsTo('ingredient'),
drink: belongsTo('drink')
});
import DS from 'ember-data';
import { dirtyHasMany, dirtyBelongsTo, dirtyMixin } from './dirty-helpers';
var attr = DS.attr, hasMany = DS.hasMany, belongsTo = DS.belongsTo;
var mixin = dirtyMixin({
_areDrinkIngredientsDirty: dirtyHasMany('drinkIngredients'),
_areDrinkGarnishesDirty: dirtyHasMany('drinkGarnishes'),
_isGlassDirty: dirtyBelongsTo('glass')
});
export default DS.Model.extend(mixin, {
name: attr('string'),
drinkIngredients: hasMany('drink-ingredient'),
drinkGarnishes: hasMany('drink-garnish'),
glass: belongsTo('glass')
});
Copy link

ghost commented Mar 16, 2017

Any news for Ember 2?

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment